Boss Audio Systems 644UA Owner's manual

Brand: Boss Audio Systems

Model: 644UA

Category: Car media receivers

Type: Owner's manual

644UA

OWNER’S MANUAL

Mobile Audio System

y PLL Synthesizer Stereo Radio

y CD/MP3/WMA Player

y Automatic Memory Storing

y Full Detachable Panel

y Preset Equalization

y Electronic Shockproof (ESP) Function

y Memory Card Interface

y USB Interface

y Auxiliary Input Function

y Remote Control

CONTENTS

Installation...........................................3

Take out screw before installation.........3

DIN Front-Mount (Method A).................3

Installing the unit ...............................3

Removing the unit .............................4

DIN Rear-Mount (Method B).................5

Using the detachable front panel ......6

Wiring Connection..............................7

Operation.............................................8

Location of keys....................................8

Switching on/off the unit........................9

Faceplate release .................................9

Sound adjustment.................................9

System setting......................................9

Loudness..............................................9

Set the clock.........................................9

Display information...............................9

Equalization..........................................9

Liquid crystal display.............................9

Remote sensor .....................................9

ESP function.........................................9

Auxiliary input .......................................9

Reset function.......................................9

Radio operation ....................................10

Switching to radio mode....................10

Selecting the frequency band............10

Selecting station................................10

Automatic memory storing&

program scanning .............................10

Station storing ...................................10

Mono/Stereo......................................10

CD/MP3/WMA operation.......................10

Switching to CD mode.......................10

Selecting tracks.................................10

Pausing playing.................................10

Previewing tracks..............................11

Playing tracks in random...................11

Ejecting a disc...................................11

Special function for MP3/WMA disc...11

USB play operation...............................12

Memory card operation.........................12

Disc notes.............................................12

Remote control....................................14

Specification........................................15

Trouble shooting.................................16

Repeating tracks...............................11

Basic operation.....................................9

INSTALLATION

Notes:

y Choose the mounting location where

the unit will not interfere with the normal

driving function of the driver.

y Before finally installing the unit, connect

the wiring temporarily and make sure it

is all connected up properly and the

unit and the system work properly.

y Use only the parts included with the

unit to ensure proper installation. The

use of unauthorized parts can cause

malfunctions.

y Consult with your nearest dealer if

installation requires the drilling of holes

or other modifications of the vehicle.

y Install the unit where it does not get in

the driver’s way and cannot injure the

passenger if there is a sudden stop, like

an emergency stop.

y If installation angel exceeds 30° from

horizontal, the unit might not give its

optimum performance.

y Avoid installing the unit where it would

be subject to high temperature, such as

from direct sunlight, or hot air, from the

heater, or where it would be subject to

dust, dirt or excessive vibration.

DIN FRONT/REAR-MOUNT

This unit be can properly installed either

from “Front” (conventional DIN Front-mount)

or “Rear”(DIN Rear-mount installation,

utilizing threaded screw holes at the sides

of the unit chassis). For details, refer to the

following illustrated installation methods.

TAKE OUT SCREW BEFORE INSTALLATION

Before install the unit, please remove the

two screws.

DIN FRONT-MOUNT (Method A)

Installation Opening

This unit can be installed in any dashboard

having an opening as shown below:

Installing the unit

Be sure you test all connections first, and

then follow these steps to install the unit.

1. Make sure the ignition is turned off, and

then disconnect the cable from the

vehicle battery’s negative (-) terminal.

2. Disconnect the wire harness and the

antenna.

3. Press the release button on the front

panel and remove the control panel

(see the steps of “removing the front

panel”).

4. Lift the top of the outer trim ring then pull

it out to remove it.

5. The two supplied keys release tabs

inside the unit’s sleeve so you can

remove it. Insert the keys as far as they

will go (with the notches facing up) into

the appropriate slots at the middle left

and right sides of the unit. Then slide

the sleeve off the back of the unit.

Take out screw

before installation.

INSTALLATION

(1) Front panel; (2) Outer trim ring;

(3) Sleeve; (4) L key; (5) R key

6. Mount the sleeve by inserting it into the

opening of the dashboard and bend

open the tabs located around the sleeve

with a screwdriver. Not all tabs will be

able to make contact, so examine which

ones will be most effective. Bending

open the appropriate tabs behind the

dashboard to secure the sleeve in

place.

(1) Dashboard (2) Taps

7. Reconnect the wire harness and the

antenna and be careful not to pinch any

wires or cables.

8. Slide the unit into the sleeve until it

locks into place.

9. To further secure the unit, use the

supplied metal strap to secure the back

of the unit in place. Use the supplied

hardware (Hex Nut (M5mm) and Spring

Washer) to attach one end of the strap

to the mounting bolt on the back of the

unit. If necessary, bend the metal strap

to fit your vehicle’s mounting area. Then

use the supplied hardware (Tapping

Screw and Plain Washer) to attach the

other end of metal strap to a solid metal

part of the vehicle under the dashboard.

This strap also helps ensure proper

electrical grounding of the unit.

Note to install the short threading terminal

of the mounting bolt to the back of the unit

and the other long threading terminal to

the dashboard.

(1) Metal Strap; (2) Mounting Bolt;

(3) Hex Nut; (4) Spring Washer;

(5) Tapping Screw; (6) Plain Washer

10. Reconnect the cable to the vehicle

battery’s negative (-) terminal. Then

replace the outer trim ring and install the

unit’s front panel (see the steps of

“Installing the front panel”).

Removing the unit

1. Make sure the ignition is turned off, then

disconnect the cable from the vehicle

battery’s negative (-) terminal.

2. Remove the metal strap attached the

back of the unit (if attached).

3. Press the release button to remove the

front panel.

4. Lift the top of the outer trim ring then pull

it out to remove it.

INSTALLATION

5. Insert both of the supplied keys into the

slots at the middle left and right sides of

the unit, then pull the unit out of the

dashboard.

DIN REAR-MOUNT (Method B)

If your vehicle is a Nissan, Toyota, follow

these mounting instructions.

Use the screw holes marked T (Toyota), N

(Nissan) located on both sides of the unit to

fasten the unit to the factory radio mounting

brackets supplied with your vehicle.

Dashboard or Console

Screw

Factory Radio

Mounting Bracket

Side View showing

Screw Holes marked

T, N

Screw

To fasten the unit to the factory radio

mounting brackets.

Align the screw holes on the bracket with

the screw holes on the unit, and then

tighten the screws (5x5mm) on each side.

Note: The outer trim ring, sleeve and the

metal strap are not used for method B

installation.

REMOVING THE FRONT PANEL

1. Press the release button on the front

panel and pull off the front panel.

2. Keep front panel into the case.

INSTALLING THE FRONT PANEL

To install the front panel, insert the panel

into the housing and make sure the panel

is properly installed. Otherwise,

abnormality occurs on the display or some

keys will not function properly.

Precautions when handing

1. Do not drop the front panel.

Precautions when handling

1. Do not drop the front panel.

2. Do not put pressure on the display or

control buttons when detaching or

re-installing the front panel.

3. Do not touch the contacts on the front

panel or on the main unit body. It may

result in poor electrical contact.

4. If any dirt or foreign substances

adhered on the contacts, they can be

removed with a clean and dry cloth.

5. Do not expose the front panel to high

temperatures or direct sunlight in

anywhere.

6. Keep away any volatile agents (e.g.

benzene, thinner, or insecticides) from

touching the surface of the front panel

7. Do not attempt to disassemble the front

panel.

USING THE DETACHABLE FRONT PANEL

WIRING CONNECTION

FOR 60X4W SYSTEM

OPERATION

LOCATION OF KEYS

1. release button

2. (tune/seek/track up)

3. Volume knob (when rotated)

SEL button (when pressed)

4. Disc slot

5. 1 PAU button

6. 2 SCN button

7. 1-6 preset buttons

8. 3 RPT button

9. MON button

10. AS/PS/Navi-SCH button

11. MOD button

12. Eject button

13. Liquid crystal display

14. BND/LOU/ENT button

15. (tune/seek/track down)

16. 4 SHF button

17. Memory card interface

18. 5 DIR- button

19. 6 DIR+ button

20. EQ button

21. USB interface

22. DISP button

23. PWR/MUT button

24. Auxiliary input jack

25. Reset button

26. Remote sensor

OPERATION

BASIC OPERATION

SWITCHING ON/OFF THE UNIT

Press PWR/MUT button (23) to switch on

the unit. When system is on, press and

hold PWR/MUT button (23) to turn off the

unit.

FACEPLATE RELEASE

Press button (1) to detach the

removable faceplate.

SOUND ADJUSTMENT

Press the volume button (3) shortly to

select the desired adjustment mode. The

adjustment mode will change in the

following order:

VOL BAS TRB BAL FAD

(Volume) (Bass) (Treble) (Balance) (Fader)

By rotating the volume knob (3) clockwise or

counter-clockwise, it is possible to adjust the

desired sound quality.

SYSTEM SETTING

Press and hold the volume button (3) on

the front panel to enter system setting

mode. Then shortly press the volume

button (3) to select the item you want to

change and rotate the volume knob (3) to

change the corresponding setting.

1) BEEP ON/OFF

Use the volume knob (3) to set Beep

sound ON or OFF.

2) AREA OIR/EUR/USA/ASI/S-R/JPN

In radio mode, Use the volume knob

(3) to set the different area frequency

spacing.

3) DIM HIGH/LOW/MID

In this menu, rotate the volume knob (3)

to change the brightness of the backlight

among High, Low and Middle.

LOUDNESS

Press BND/LOU/ENT button (14) for

several seconds to reinforce the bass

output. Press it for several seconds again

to release this function.

SET THE CLOCK

Press the DISP button (22) until the clock

is shown on the display. Then hold the

button until the clock flashes. Then press

button (2) to change the minutes and

button (15) to change the hours.

DISPLAY INFORMATION

Press DISP button (22) to operate as the

conversion of each display mode.

EQUALIZATION

Press EQ button (20) to turn on

equalization function and to select desired

audio mode. There are five kinds of mode

as below:

ĺFLATĺCLASSICSĺPOP MĺROCK MĺDSP OFF

MUTE

Press PWR/MUT button (23) shortly to

mute down the sound instantly. Press it

again to resume the sound.

LIQUID CRYSTAL DISPLAY

Exhibit current frequency and activated

functions on the display (13).

REMOTE SENSOR

Point the remote control handset to the

remote sensor (26). Press the function

keys on the handset to control the system.

ESP FUNCTION

The unit can be shockproof about ten

seconds.

AUXILIARY INPUT

The unit can be connected to a portable

audio player through the auxiliary input jack

(24) on the front panel. After finishing the

connection, you can press MOD button

(11) on the front panel to switch the mode

to AUX IN mode.

RESET FUNCTION

Reset button (25) must be activated with

either a ballpoint pen or thin metal object.

OPERATION

The reset button is to be activated for the

following reasons:

- Initial installation of the unit when all

wiring is completed.

- All the function buttons do not operate.

- Error symbol on the display.

Note: if press reset button (25), the unit

can’t work yet, please use a cotton swab

soaked in isopropyl alcohol to clean the

socket on the front panel.

RADIO OPERATION

SWITCHING TO RADIO MODE

Press MOD button (11) shortly to select

radio mode, the radio mode appears in the

display together with the memory band and

frequency.

SELECTING THE FREQUENCY BAND

At radio mode, press BND/LOU/ENT

button (14) shortly to select the desired

band.

The reception band will change in the

following order:

FM1 FM2 FM3 AM1 AM2

SELECTING STATION

Press button (2) or button (15)

shortly to activate automatic seek function.

Press for several seconds until “MANUAL”

appears on the display, the manual tuning

mode is selected. If both buttons have not

been pressed for several seconds, they will

return to seek tuning mode and “AUTO”

appears on the display.

AUTOMATIC MEMORY STORING &

PROGRAM SCANNING

- Automatic memory storing

Press AS/PS button (10) for several

seconds, the radio searches from the

current frequency and checks the signal

strength until one cycle search is

finished. And then 6 strongest stations

are stored into the corresponding

preset number button.

- Program scanning

Press AS/PS button (10) shortly to scan

preset station. When the field strength

level is more than the threshold level of

stop level, the radio is holding at that

preset number for several seconds with

release mute, then searches again.

STATION STORING

Press any one of the preset buttons (7) (1

to 6) to select a station, which had been

stored in the memory. Press this button for

several seconds to store the current station

into the number button.

MONO/STEREO

Press MON button (9) to select mono or

stereo mode. You can sometimes improve

reception of distant stations by selecting

mono operation.

CD/MP3/WMA OPERATION

SWITCHING TO CD MODE

If there is no CD/MP3/WMA disc inserted in

the driver:

Gently insert the disc with the printed side

uppermost into the CD compartment until

you feel some resistance. The disc is

drawn into the driver automatically. Disc

playback begins.

If a CD/MP3/WMA disc is already inserted

in the driver:

Keep pressing MOD button (11) shortly

until the CD mode display appears.

SELECTING TRACKS

Press button (15) or button (2) to

move to the previous track or the following

track. Track number shows on display.

Hold button (15) or button (2) to

fast reverse or fast forward. Disc play starts

from when you release the button.

PAUSING PLAYING

Press PAU button (5) to pause the player.

Press it again to resume play.

OPERATION

PREVIEWING TRACKS

Press SCN button (6) to play first several

seconds of each track on the current disc.

Press again to stop intro and listen to track.

When playing MP3/WMA disc, press and

hold SCN button (6) to play first several

seconds of each track in the current

directory. Press it again to exit this mode.

REPEATING TRACKS

Press RPT button (8) to continuously

repeat the same track. Press it again to

stop repeat.

When playing MP3/WMA disc, press and

hold RPT button (8) to repeat all tracks in

the current directory. Press it again to exit

this mode.

PLAYING TRACKS IN RANDOM

Press SHF button (16) to play all tracks on

CD in random order. Press again to cancel

the function.

When playing MP3/WMA disc, press and

hold SHF button (16) to play all tracks in

the current directory in random order.

Press it again to exit this mode.

EJECTING A DISC

Press button (12) to stop CD playing

and eject the disc from the disc slot (4).

SPECIAL FUNCTIONS FOR MP3/WMA

DISC

1) SELECTING DIRECTORY UP/DOWN

Press DIR- button (18) or DIR+ button

(19) to select directory downward or

upward. If the MP3/WMA disc does not

contain any directory, there is no function

of pressing DIR- button (18) or DIR+

button (19).

2) SELECTING TRACKS BY AS/PS

/Navi-SCH BUTTON

AS/PS (Navi-SCH) button (10) is

assigned as Digital Audio Mode selection

button in MP3/WMA operation.

When pressed, it is activated as

selecting each mode of Digital Audio.

“Searching track directly” => “Searching

Directory or File Name”=> “Navigation”

from root => “Navigation” from current

directory.

 Searching Track Directly

Press AS/PS (Navi-SCH) button (10)

for one time. The unit searches the

track selected by the volume knob (3).

Then press the volume button (3) or

BND/LOU/ENT button (14) to start

playing the track.

 Searching Directory or File Name

Press AS/PS (Navi-SCH) button (10)

two times.

The unit searches files and directories

that have the same character which is

inputted by the user rotating the volume

knob (3).

Explain as follows:

- Use the volume knob to select the

characters A to Z, blank, 0 to 9, _, -, +.

- Press the volume button (3) to

confirm entry of each characters.

- Press BND/LOU/ENT button (14) to

start the title search.

 Searching From Root Directory

Press AS/PS (Navi-SCH) button (10)

three times. The unit searches file or

directory from root by the volume button

(3).

Select the desired directory/songs by

using the volume button (3) and

BND/LOU/ENT button (14) or volume

button (3) to confirm. If the selected title

is a song, it starts to play.

 Searching From Current Directory

Press AS/PS (Navi-SCH) button (10)

four times. The unit searches file or

directory from current directory by the

volume button (3). The user can select

the directory or file in the directory by

the volume button (3). The selected file

can be played by pressing

BND/LOU/ENT button (14) or volume

button (3).

OPERATION

3) DISPLAY INFORMATION

Press DISP button (22) to show the

following information, such as the clock,

ID3 TAG (if available: song title, directory

name, artist name, other contents…)

(FOR MP3/WMA ID3 FUNCTION

VERSION ONLY) and other information.

USB PLAY OPERATION

On the front panel of unit, there is an USB

interface (21), you can connect an USB

driver through this interface.

When you connect an USB driver through the

interface, the unit will search the MP3/WMA

files and start to play it automatically. In other

mode, you can also press MOD button (11) to

select USB mode.

When playing the MP3/WMA files in the

device, the operation is the same with the

MP3 operation described above.

Note˖

z The main unit can only support the

standard USB-memory disc.

z USB MP3 player is not a standard

which means different brand name or

different models have their own

standard. So our product cannot

support all MP3 players.

z When connecting an MP3 player and

there has normal battery in the player

(non rechargeable battery), you should

remove the battery from the MP3 player

then connect it to the USB interface.

Otherwise, it may cause battery burst.

z When in USB play mode, be sure not

to remove the USB driver from the USB

interface.

MEMORY CARD OPERATION

There is a memory card interface (17) on

the front panel of the unit.

When you insert a memory card in the

memory card interface, the unit will search

the MP3 files in the card and start to play

MP3 files automatically.

The operation is the same with the MP3

operation described above. If in other

mode, you can also press MOD button (11)

to select memory card play mode.

CAUTION

When there are important files in the USB

device or memory card, do not connect it to

the main unit to play. And don’t play the

CD-R/RW disc that has important files in it.

Because any wrong operation may cause

files loss. And our company assumes no

responsibility for this.

DISC NOTES

A. Notes on discs:

1. Attempting to use non-standard shape

discs (e.g. square, start, heart) may

damage the unit. Be sure to use round

shape CD discs only for this unit.

2. Do not stick paper or tape, etc, onto the

label side or the recording side of any

discs, as it may cause a malfunction.

3. Dirt, dust, scratches and warping discs

will cause misoperation.

B. Notes on CD-Rs (recordable

CDs)/CD-RWs (rewritable CDs):

1. The unit cannot play a CD-R and

CD-RW that is not finalized. (Please

refer to the manual of your

CD-R/CD-RW recorder or

CD-R/CD-RW software for more

information on finalization process).

2. Depending on the recording status,

conditions of the disc and the

equipment used for the recording, some

CD-Rs/CD-RWs may not be played on

this unit. (see *1)

*1: To have more reliable play back, please

see following recommendations:

a: Use CD-RWs with speed 1x to 4x

and write with speed 1x to 2x.

OPERATION

C. Notes on MP3 files (MP3 Version

Only):

1. The disc must be in the ISO9660 level 1

or level 2 format, or Joliet or Romeo in

the expansion format.

2. When naming a MP3 file, be sure the

file name extension is “.MP3”.

3. For a non-MP3 file, even though the file

name extension is “.MP3”, the unit

cannot recognize it.

b. Use CD-Rs with speed 1x to 8x and

write with speed 1x to 2x.

c. Do not play a CD-RW which has

been written for more than 5 times.

REMOTE CONTROL

1. VOL+: Volume Up Button (Character Select (A, B~8,9,0, _,-,+) For MP3/WMA Operation)

MUTE: Power ON/OFF/MUTE Button

3. SELECT: Sound Mode Select Button (Character Shift Right For MP3/WMA Operation)

4. TUNE/SKIP

: Tune/Seek Down Button

5. DISP: Display Button

6. VOL-: Volume Down Button (Character Select (A,B~8,9,0, _,-,+) For MP3/WMA Operation)

7. 1 PAU: Pause Button

8. 1-6: Preset Buttons

9. 4 SHF: Shuffle Button

10. AS/PS/D-AUD: Automatic Memory Storing & Program Scanning Button

(Mode Select Button For MP3/WMA Operation)

11. MODE: Mode Button

12. TUNE/SKIP

: Tune/Seek Up Button

13. BAND/LOU/ENT: Band Select Button (When pressed shortly)

Loudness Button (When pressed long)

(Enter Button For MP3/WMA Operation)

14. 2 SCN: Scanning Button

15. 3 RPT: Repeat Button

16. 6 DIR

: Directory Up Button

17. 5 DIR

: Directory Down Button

SPECIFICATION

GENERAL

Power Supply Requirements : DC 12 Volts, Negative Ground

Chassis Dimensions : 178 (W) x 160 (D) x 50 (H)

Tone Controls

- Bass (at 100 Hz) : ±10 dB

- Treble (at 10 kHz) : ±10 dB

Maximum Output Power : 60x4 watts

Current Drain : 5 Ampere (max.)

CD PLAYER

Signal to Noise Ratio : More than 55 dB

Channel Separation : More than 50 dB

Frequency Response : 40Hz – 18 kHz

RADIO

For 2 Bands

Frequency Coverage 87.5 to 107.9 MHz

IF 10.7 MHz

Sensitivity (S/N=30dB) 10 dBu

Stereo Separation >25dB

Frequency Coverage 530 to 1710 KHz

IF 450 kHz

Sensitivity (S/N=20dB) 36 dBu

TROUBLE SHOOTING

Before going through the checklist, check wiring connection. If any of the problems

persist after checklist has been made, consult your nearest service dealer.

Symptom Cause Solution

No power.

The car ignition switch is

not on.

If the power supply is

connected to the car accessory

circuits, but the engine is not

moving, switch the ignition key

to “ACC”.

The fuse is blown. Replace the fuse.

Disc cannot be

loaded or

ejected.

Presence of CD disc

inside the player.

Remove the disc in the player,

then put a new one.

Inserting the disc in reverse

direction.

Insert the compact disc with the

label facing upward.

Compact disc is extremely

dirty or defective.

Clean the disc or try to play a new

one.

Temperature inside the car

is too high.

Cool off until the temperature

returns to normal.

Condensation. Leave the player off for an hour or

so, then try again.

No sound.

Volume is in minimum Adjust volume to a desired level.

Wiring is not properly

connected.

Check wiring connection.

Sound skips.

The installation angle is

more than 30 degrees.

Adjust the installation angle less

than 30 degrees.

The disc is extremely

dirty or defective.

Clean the compact disc, then try to

play a new one.

The operation

keys do not

work.

The built-in microcomputer

is not operating properly

due to noise.

Press the RESET button.

Front panel is not properly fixed into

its place.

The antenna cable is not

connected.

Insert the antenna cable firmly. The radio does

not Work. The

radio station

automatic

selection does

not work.

The signals are too weak. Select a station manually.

Boss Audio Systems 644UA Owner's manual

Brand: Boss Audio Systems

Model: 644UA

Category: Car media receivers

Type: Owner's manual

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Boss Audio Systems 644UA Owner's manual

Boss Audio Systems 644UA Owner's manual

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